#include<stdio.h>
#include<stdlib.h>
#include<unistd.h>
#include<string.h>

int main()
{
    //char* arr[] = {(char*)"echo", (char*)"$bbbb"};
    //printf("%s\n", arr[1]+1);
    //printf("%s\n", getenv(arr[1]+1));
    char* str = "hello world";
    printf("%d\n", strlen(str));
    printf("%s\n", str);

    return 0;
}
